S - 3 5 7 5 R E V 3-81 15TAIUSMCD 0 2 E.

WATER SOLUBILITY (BY ANALYSIS OF TOC) TEST SUBSTANCE Identity: Perfluorooctanesulfonyl fluoride; may also be referred to as POSF, or FX-8. (1-Octanesulfonyl fluoride, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, CAS #30735-7).

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST SUBSTANCE Identity: Perfluorooctanesulfonylamido(ethyl)acetate; may also be referred to as PFOSAA, FC-128 or as the major component of FC-127, FC-129, FC-109, or FC-109-X.

AJP003593 AR226-1988 BEST COPY AVAILABLE $9 "K. y x. > ~Q4 4- *k a V ^a l"ur I- o -a 4- 4" s dj i i: ?

AR226-2398 \ INTEROFFICE MEMORANDUM Dates From: Dept: Tel No s 30-Jan-1989 01:18pm ANTHONY J. tTONY] PLAYTIS PLAYTIS PPD-SPD 304-863-2775 TO?

AR226-2797 Du Pont RLR 150-88 POR DP PONT OSE ORLY Study Title IN VITRO BIOCGMPATABILiITY EVALUA.'

FOR DU POST USE ONLY AR226-2928 Approximate Lethal Concentration by Inhalation (ALC) of Haskell Laboratory Report No. 279-85 E.

ARU6-0OO6 g ) FUNDAMENTAL AND AFFUED TOXICOLOGY 4. 972-976 (1984) Cholestyramine-Enhanced Fecal Elimination of C arbon-14 in Rats after Administration of Ammonium [14C]Perfluorooctanoate or Potassium [14C]Perfluorooctanesulfonate Ja m es D .

mm cyuKiSHrrtflc: E. 1. d u P o n t d e N e m o u r s S C o m p a n y IN C O R PO R A T E D W i l m i n g t o n , D e l a w a r e 19898 POLYMER PRODUCTS DEPARTMENT EXPERIM ENTAL STATION PERSONAL AND CONFIDENTIAL c c : A.

i4l.-2fc-03T5 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identify: Perfluorooctanesulfonyl fluoride; may also be referred to as POSF, or FX-8. (1-Octanesulfonyl fluoride, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, CAS #30735-7).

/ ( ' .'

AR226-2397 Polymer Products Department cc: Research & Development Division Experimental Station CONFIDENTIAL M.

0750 ACUTE TO XIC ITY TO FISH TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203CE. (1Octanesulfonic acid) (CAS # 2795-39-3).

CC: ERD Division Directors R.

R*082 REV. i*<J cstaiushio hoi E. [ . du Pont de;ncNorpeo*mato( ours & C o m pany Wilm ington.